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Why Am I Getting a MySQL 'Can't create table (errno: 150)' Error During Import?

Jan 20, 2025 am 02:45 AM

Why Am I Getting a MySQL

Troubleshooting MySQL Table Creation Error (errno: 150)

Importing an SQL file can sometimes result in a table creation failure, displaying an error similar to:

"MySQL: Can't create table './dbname/data.frm' (errno: 150)"

This error commonly stems from inconsistencies in foreign key constraints. MySQL's documentation explains that when recreating a dropped table, its definition must perfectly match the foreign key constraints referencing it. This includes precise column names, data types, and indexes on the referenced keys. Any mismatch leads to Error 1005, which often points to Error 150, indicating a malformed foreign key constraint.

To rectify this, carefully review the foreign key definitions in your SQL file. Ensure complete consistency between the tables being imported and the original database's structure. Verify that column names, data types, and indexes precisely align with the referencing foreign key constraints. Correcting these discrepancies will resolve the error and allow successful table creation.

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